CVE-2022-23092

Summary

The implementation of lib9p's handling of RWALK messages was missing a bounds check needed when unpacking the message contents. The missing check means that the receipt of a specially crafted message will cause lib9p to overwrite unrelated memory.

The bug can be triggered by a malicious bhyve guest kernel to overwrite memory in the bhyve(8) process. This could potentially lead to user-mode code execution on the host, subject to bhyve's Capsicum sandbox.

Affected Software

Weaknesses

ADP Enrichment

CVE Program Container

Additional References

• https://security.freebsd.org/advisories/FreeBSD-SA-22:12.lib9p.asc
• https://security.netapp.com/advisory/ntap-20240415-0009/

CISA ADP Vulnrichment

• SSVC:
• Exploitation: none
  • Automatable: no
  • Technical Impact: total

References

• https://security.freebsd.org/advisories/FreeBSD-SA-22:12.lib9p.asc
• https://security.netapp.com/advisory/ntap-20240415-0009/

• ←Previous
• Next→